#include "main.h"
#include "usb.h"
#include "gpio.h"
#include "usb_device.h"
#include "sys_api.h"
#include "usbd_hid_mouse.h"
#include "usbd_hid_keyboard.h"
#include "usb_app.h"

extern USBD_HandleTypeDef hUsbDevice;
void SystemClock_Config(void);

int main(void)
{
    /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
    HAL_Init();
    /* Configure the system clock */
    SystemClock_Config();
    /* Initialize all configured peripherals */
    MX_GPIO_Init();
    MX_USB_PCD_Init();
    //add by yao_hx. Must add this code for the function
    SYSTEM_Init();
    debug("##USB Init##\r\n");
    MX_USB_DEVICE_Init();

    while (1)
    {   
        if(usb_cdc_rx_flag)
        {
            debug_hex(usb_cdc_rx_buff, usb_cdc_rx_len);
            if(hUsbDevice.dev_state == USBD_STATE_CONFIGURED)
            {
                usb_cdc_deal(usb_cdc_rx_buff, usb_cdc_rx_len);
            }
            else
            {
                debug("##usb not configured##\r\n");
            }
            memset(usb_cdc_rx_buff, 0, USB_CDC_BUFF_SIZE);
            usb_cdc_rx_flag = 0;
        } 
    }
}

void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

  /** Initializes the RCC Oscillators according to the specified parameters
  * in the RCC_OscInitTypeDef structure.
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
  PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
}

void Error_Handler(void)
{
  debug("##Err: USB error\r\n");
  __disable_irq();
  while (1)
  {
  }
}
